# makefile for libpng

# Copyright (C) 2002 Glenn Randers-Pehrson

# Copyright (C) 1995 Guy Eric Schalnat, Group 42, Inc.

# For conditions of distribution and use, see copyright notice in png.h

# This makefile requires the file ansi2knr.c, which you can get

# from the Ghostscript ftp site at ftp://ftp.cs.wisc.edu/ghost/

# If you have libjpeg, you probably already have ansi2knr.c in the jpeg

# source distribution.

# where make install puts libpng.a and png.h

prefix=/usr/local

INCPATH=$(prefix)/include

LIBPATH=$(prefix)/lib

# override DESTDIR= on the make install command line to easily support

# installing into a temporary location.  Example:

#

#    make install DESTDIR=/tmp/build/libpng

#

# If you're going to install into a temporary location

# via DESTDIR, $(DESTDIR)$(prefix) must already exist before

# you execute make install.

DESTDIR=

CC=cc

CFLAGS=-I../zlib -O

LDFLAGS=-L. -L../zlib/ -lpng -lz -lm

# flags for ansi2knr

ANSI2KNRFLAGS=

RANLIB=ranlib

#RANLIB=echo

OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \

	pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \

	pngwtran.o pngmem.o pngerror.o pngpread.o

all: ansi2knr libpng.a pngtest

# general rule to allow ansi2knr to work

.c.o:

	./ansi2knr $*.c T$*.c

	$(CC) $(CFLAGS) -c T$*.c

	rm -f T$*.c $*.o

	mv T$*.o $*.o

ansi2knr: ansi2knr.c

	$(CC) $(CFLAGS) $(ANSI2KNRFLAGS) -o ansi2knr ansi2knr.c

libpng.a: ansi2knr $(OBJS)

	ar rc $@  $(OBJS)

	$(RANLIB) $@

pngtest: pngtest.o libpng.a

	$(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)

test: pngtest

	./pngtest

install: libpng.a

	-@mkdir $(DESTDIR)$(INCPATH)

	-@mkdir $(DESTDIR)$(INCPATH)/libpng

	-@mkdir $(DESTDIR)$(LIBPATH)

	-@rm -f $(DESTDIR)$(INCPATH)/png.h

	-@rm -f $(DESTDIR)$(INCPATH)/pngconf.h

	cp png.h $(DESTDIR)$(INCPATH)/libpng

	cp pngconf.h $(DESTDIR)$(INCPATH)/libpng

	chmod 644 $(DESTDIR)$(INCPATH)/libpng/png.h

	chmod 644 $(DESTDIR)$(INCPATH)/libpng/pngconf.h

	(cd $(DESTDIR)$(INCPATH); ln -f -s libpng/* .)

	cp libpng.a $(DESTDIR)$(LIBPATH)

	chmod 644 $(DESTDIR)$(LIBPATH)/libpng.a

clean:

	rm -f *.o libpng.a pngtest pngout.png ansi2knr

DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO

writelock:

	chmod a-w *.[ch35] $(DOCS) scripts/*

# DO NOT DELETE THIS LINE -- make depend depends on it.

png.o: png.h pngconf.h

pngerror.o: png.h pngconf.h

pngrio.o: png.h pngconf.h

pngwio.o: png.h pngconf.h

pngmem.o: png.h pngconf.h

pngset.o: png.h pngconf.h

pngget.o: png.h pngconf.h

pngread.o: png.h pngconf.h

pngpread.o: png.h pngconf.h

pngrtran.o: png.h pngconf.h

pngrutil.o: png.h pngconf.h

pngtest.o: png.h pngconf.h

pngtrans.o: png.h pngconf.h

pngwrite.o: png.h pngconf.h

pngwtran.o: png.h pngconf.h

pngwutil.o: png.h pngconf.h